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- /*
- * Copyright (c) 1988 University of Utah.
- * Copyright (c) 1982, 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * the Systems Programming Group of the University of Utah Computer
- * Science Department.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * from: Utah $Hdr: rd.c 1.14 89/02/27$
- *
- * @(#)rd.c 7.3 (Berkeley) 5/5/91
- */
-
- /*
- * CS80/SS80 disk driver
- */
- #include <sys/param.h>
- #include "saio.h"
- #include "samachdep.h"
-
- #include "../dev/rdreg.h"
-
- struct rd_iocmd rd_ioc;
- struct rd_rscmd rd_rsc;
- struct rd_stat rd_stat;
- struct rd_ssmcmd rd_ssmc;
-
- struct rd_softc {
- char sc_retry;
- char sc_alive;
- short sc_type;
- } rd_softc[NRD];
-
- #define RDRETRY 5
-
- int rdcyloff[][8] = {
- { 1, 143, 0, 143, 0, 0, 323, 503, }, /* 7945A */
- { 1, 167, 0, 0, 0, 0, 0, 0, }, /* 9134D */
- { 0, 0, 0, 0, 0, 0, 0, 0, }, /* 9122S */
- { 0, 71, 0, 221, 292, 542, 221, 0, }, /* 7912P */
- { 1, 72, 0, 72, 362, 802, 252, 362, }, /* 7914P */
- { 1, 28, 0, 140, 167, 444, 140, 721, }, /* 7933H */
- { 1, 200, 0, 200, 0, 0, 450, 600, }, /* 9134L */
- { 1, 105, 0, 105, 380, 736, 265, 380, }, /* 7957A */
- { 1, 65, 0, 65, 257, 657, 193, 257, }, /* 7958A */
- { 1, 128, 0, 128, 518, 918, 388, 518, }, /* 7957B */
- { 1, 44, 0, 44, 174, 496, 131, 174, }, /* 7958B */
- { 1, 44, 0, 44, 218, 918, 174, 218, }, /* 7959B */
- { 1, 20, 0, 98, 117, 256, 98, 397, }, /* 7936H */
- { 1, 11, 0, 53, 63, 217, 53, 371, }, /* 7937H */
- };
-
- struct rdinfo {
- int nbpc;
- int hwid;
- int *cyloff;
- } rdinfo[] = {
- NRD7945ABPT*NRD7945ATRK, RD7946AID, rdcyloff[0],
- NRD9134DBPT*NRD9134DTRK, RD9134DID, rdcyloff[1],
- NRD9122SBPT*NRD9122STRK, RD9134LID, rdcyloff[2],
- NRD7912PBPT*NRD7912PTRK, RD7912PID, rdcyloff[3],
- NRD7914PBPT*NRD7914PTRK, RD7914PID, rdcyloff[4],
- NRD7958ABPT*NRD7958ATRK, RD7958AID, rdcyloff[8],
- NRD7957ABPT*NRD7957ATRK, RD7957AID, rdcyloff[7],
- NRD7933HBPT*NRD7933HTRK, RD7933HID, rdcyloff[5],
- NRD9134LBPT*NRD9134LTRK, RD9134LID, rdcyloff[6],
- NRD7936HBPT*NRD7936HTRK, RD7936HID, rdcyloff[12],
- NRD7937HBPT*NRD7937HTRK, RD7937HID, rdcyloff[13],
- NRD7914PBPT*NRD7914PTRK, RD7914CTID,rdcyloff[4],
- NRD7945ABPT*NRD7945ATRK, RD7946AID, rdcyloff[0],
- NRD9122SBPT*NRD9122STRK, RD9134LID, rdcyloff[2],
- NRD7957BBPT*NRD7957BTRK, RD7957BID, rdcyloff[9],
- NRD7958BBPT*NRD7958BTRK, RD7958BID, rdcyloff[10],
- NRD7959BBPT*NRD7959BTRK, RD7959BID, rdcyloff[11],
- };
- int nrdinfo = sizeof(rdinfo) / sizeof(rdinfo[0]);
-
- rdinit(unit)
- register int unit;
- {
- register struct rd_softc *rs;
- u_char stat;
-
- if (unit > NRD)
- return (0);
- rs = &rd_softc[unit];
- rs->sc_type = rdident(unit);
- if (rs->sc_type < 0)
- return (0);
- rs->sc_alive = 1;
- return (1);
- }
-
- rdreset(unit)
- {
- u_char stat;
-
- rd_ssmc.c_unit = C_SUNIT(0);
- rd_ssmc.c_cmd = C_SSM;
- rd_ssmc.c_refm = REF_MASK;
- rd_ssmc.c_fefm = FEF_MASK;
- rd_ssmc.c_aefm = AEF_MASK;
- rd_ssmc.c_iefm = IEF_MASK;
- hpibsend(unit, C_CMD, &rd_ssmc, sizeof(rd_ssmc));
- hpibswait(unit);
- hpibrecv(unit, C_QSTAT, &stat, 1);
- }
-
- rdident(unit)
- {
- struct rd_describe desc;
- u_char stat, cmd[3];
- char name[7];
- register int id, i;
-
- id = hpibid(unit);
- if ((id & 0x200) == 0)
- return(-1);
- for (i = 0; i < nrdinfo; i++)
- if (id == rdinfo[i].hwid)
- break;
- if (i == nrdinfo)
- return(-1);
- id = i;
- rdreset(unit);
- cmd[0] = C_SUNIT(0);
- cmd[1] = C_SVOL(0);
- cmd[2] = C_DESC;
- hpibsend(unit, C_CMD, cmd, sizeof(cmd));
- hpibrecv(unit, C_EXEC, &desc, 37);
- hpibrecv(unit, C_QSTAT, &stat, sizeof(stat));
- bzero(name, sizeof(name));
- if (!stat) {
- register int n = desc.d_name;
- for (i = 5; i >= 0; i--) {
- name[i] = (n & 0xf) + '0';
- n >>= 4;
- }
- }
- /*
- * Take care of a couple of anomolies:
- * 1. 7945A and 7946A both return same HW id
- * 2. 9122S and 9134D both return same HW id
- * 3. 9122D and 9134L both return same HW id
- */
- switch (rdinfo[id].hwid) {
- case RD7946AID:
- if (bcmp(name, "079450", 6) == 0)
- id = RD7945A;
- else
- id = RD7946A;
- break;
-
- case RD9134LID:
- if (bcmp(name, "091340", 6) == 0)
- id = RD9134L;
- else
- id = RD9122D;
- break;
-
- case RD9134DID:
- if (bcmp(name, "091220", 6) == 0)
- id = RD9122S;
- else
- id = RD9134D;
- break;
- }
- return(id);
- }
-
- rdopen(io)
- struct iob *io;
- {
- register int unit = io->i_unit;
- register struct rd_softc *rs = &rd_softc[unit];
- struct rdinfo *ri;
-
- if (hpibalive(unit) == 0)
- _stop("rd controller not configured");
- if (rs->sc_alive == 0)
- if (rdinit(unit) == 0)
- _stop("rd init failed");
- if (io->i_boff < 0 || io->i_boff > 7)
- _stop("rd bad minor");
- ri = &rdinfo[rs->sc_type];
- io->i_boff = ri->cyloff[io->i_boff] * ri->nbpc;
- }
-
- rdstrategy(io, func)
- register struct iob *io;
- register int func;
- {
- register int unit = io->i_unit;
- register struct rd_softc *rs = &rd_softc[unit];
- char stat;
-
- rs->sc_retry = 0;
- rd_ioc.c_unit = C_SUNIT(0);
- rd_ioc.c_volume = C_SVOL(0);
- rd_ioc.c_saddr = C_SADDR;
- rd_ioc.c_hiaddr = 0;
- rd_ioc.c_addr = RDBTOS(io->i_bn);
- rd_ioc.c_nop2 = C_NOP;
- rd_ioc.c_slen = C_SLEN;
- rd_ioc.c_len = io->i_cc;
- rd_ioc.c_cmd = func == F_READ ? C_READ : C_WRITE;
- retry:
- hpibsend(unit, C_CMD, &rd_ioc.c_unit, sizeof(rd_ioc)-2);
- hpibswait(unit);
- hpibgo(unit, C_EXEC, io->i_ma, io->i_cc, func);
- hpibswait(unit);
- hpibrecv(unit, C_QSTAT, &stat, 1);
- if (stat) {
- if (rderror(unit) == 0)
- return(-1);
- if (++rs->sc_retry > RDRETRY)
- return(-1);
- else
- goto retry;
- }
- return(io->i_cc);
- }
-
- rderror(unit)
- register int unit;
- {
- register struct rd_softc *rd = &rd_softc[unit];
- char stat;
-
- rd_rsc.c_unit = C_SUNIT(0);
- rd_rsc.c_sram = C_SRAM;
- rd_rsc.c_ram = C_RAM;
- rd_rsc.c_cmd = C_STATUS;
- hpibsend(unit, C_CMD, &rd_rsc, sizeof(rd_rsc));
- hpibrecv(unit, C_EXEC, &rd_stat, sizeof(rd_stat));
- hpibrecv(unit, C_QSTAT, &stat, 1);
- if (stat) {
- printf("rd(%d,?): request status fail %d\n", unit, stat);
- return(0);
- }
- printf("rd(%d,?) err: vu 0x%x", unit, rd_stat.c_vu);
- if ((rd_stat.c_aef & AEF_UD) || (rd_stat.c_ief & (IEF_MD|IEF_RD)))
- printf(", block %d", rd_stat.c_blk);
- printf(", R0x%x F0x%x A0x%x I0x%x\n",
- rd_stat.c_ref, rd_stat.c_fef, rd_stat.c_aef, rd_stat.c_ief);
- return(1);
- }
-